She speaks English and a little French. Almost all of the gray matter in the brains of women changes during pregnancy, according to a recent study, and these changes are linked to hormone ...

Because we haven't found anything yet, we've started to wonder if dark matter might be lighter or heavier than we thought. Dark matter can't be too heavy or it might break our best model of the ...

Dark energy and dark matter refers to the unseen energy and matter components of the Universe. Dark matter is invisible, non-baryonic matter hypothesized to explain phenomena including ...

How could such a tiny piece of matter have mattered so much? After all, as Mr. Tonelli suggests in the subtitle to his book, matter is a “magnificent illusion.” Mr. Tonelli bookends “Matter ...

The cores of galaxies may not be made of what we thought, new research suggests — they could hold one giant, invisible star made of mysterious "fuzzy" matter. When you purchase through links on ...

The low surface brightness of these galaxies, and hence their low surface stellar mass density, suggest that the energy density released by baryonic feedback mechanisms is inefficient in modifying the ...